Global Patent Index - EP 2014024 B1

EP 2014024 B1 2011-07-13 - DYNAMIC CARRIER SENSING THRESHOLDS

Title (en)

DYNAMIC CARRIER SENSING THRESHOLDS

Title (de)

DYNAMISCHE TRÄGERMESSUNGSGRENZWERTE

Title (fr)

SEUILS DE DÉTECTION DE PORTEUSES DYNAMIQUES

Publication

EP 2014024 B1 (EN)

Application

EP 07760625 A

Priority

  • US 2007066606 W
  • US 79214106 P
  • US 82790806 P

Abstract (en)

[origin: US2007242621A1] Systems and methodologies are described that facilitate communication in a wireless network environment. In particular, access points can dynamically adjust transmit power and/or carrier-sensing thresholds to allow multiple access points to communicate concurrently. In aspects, access points exchange node information, including RSSI and node addresses, of nearby nodes. The node information can be utilized to detect hidden nodes and estimate interference levels. Transmit power and/or carrier-sensing thresholds can be modified as a function of distance between source and destination access points, interference from hidden nodes, transmission rates, and/or path loss.

IPC 8 full level

H04L 12/40 (2006.01)

CPC

H04L 12/413 (2013.01); H04B 17/318 (2013.01); H04W 52/245 (2013.01); H04W 52/267 (2013.01); H04W 74/0808 (2013.01); H04W 8/26 (2013.01); H04W 48/16 (2013.01); H04W 88/08 (2013.01); H04W 92/20 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

DOCDB simple family

US 2007242621 A1 20071018; US 8681810 B2 20140325; AT 516641 T 20110715; BR PI0709818 A2 20110726; CA 2646483 A1 20071025; CN 101421990 A 20090429; CN 101421990 B 20130717; EP 2014024 A1 20090114; EP 2014024 B1 20110713; HK 1129789 A1 20140404; JP 2009533976 A 20090917; JP 4903859 B2 20120328; KR 101089075 B1 20111205; KR 20080113100 A 20081226; RU 2008144693 A 20100520; RU 2431927 C2 20111020; WO 2007121340 A1 20071025